Cita APA (7th ed.)
Klein, F. (1956). Famous problems of elementary geometry: The duplication of the cube, the trisection of an angle, the quadrature of the circle (1a. ed.). Dover publications.
Cita Chicago (17th ed.)
Klein, Felix. Famous Problems of Elementary Geometry: The Duplication of the Cube, the Trisection of an Angle, the Quadrature of the Circle. 1a. ed. New York: Dover publications, 1956.
Cita MLA (9th ed.)
Klein, Felix. Famous Problems of Elementary Geometry: The Duplication of the Cube, the Trisection of an Angle, the Quadrature of the Circle. 1a. ed. Dover publications, 1956.
Atenció: Aquestes cites poden no estar 100% correctes.